Addition, Addition Table


Addition can be defined as the process in which we unite the given two or more numbers in such a way that all the numbers we used is expressed by single number. Therefore, the added single digit number is known as "Sum" and it is denoted by '+' sign.

For example, Charlie has 3 apples and Brine has 2 apples. What is the total number of apples does both of them have?


Charlie = 3apples
Brine = 2apples


= 3 + 2
= 5

Therefore, the total number of apples = 5

The sign '=' is known as sign of equality. While placed in-between 2 numbers it helps say that equals to each other. In other words, they contain exact number of unit. Like, 3+2=5.

Addition Table

Addition Table

The standard and easiest way to understand is by writing the numbers one below the other, exactly units under the units and tens under the tens. Here is an example,

How to do Addition

So always start adding the numbers from right-hand side. In the above example, number 2 and 1 from the right-hand side are added first and then 2 and 4 are added together. Hence, by adding 21 and 42 we get the total sum as '63'.

Process of Carrying in Addition

You may face similar situation like adding a number 894 and 637. Here, you may add the numbers with the help of carrying process.

Addition Carrying

Rules for Adding Numbers

1. Always write down the number which you like to add, so that the unit of that particular order shall come under each other and never forget to draw the horizontal line beneath the numbers.

2. Start from right-hand side and write the total under the column which can be expressed by single digit.

3. If the added number is not a single figure, write the excess number over the exact tens place on the left side, so that you can add that excess number at the time when you add the next left side set of numbers.

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